The BSF personnel guarding the India-Bangladesh border in Cooch Behar's Sitalkuchi were accused of lynching a villager, who was brought to a hospital in "BSF uniform", and declared dead on Sunday.

Deceased Jalal Mian's family members have filed a police complaint and demanded a full probe.

Sources said Jalal, 45, of Baramaricha village near the border, went missing on Saturday evening. His family filed a missing diary.

On Sunday morning, a team of the 75th battalion of the BSF deployed in Sitalkuchi brought Jalal to the subdivisional hospital in Mathabhanga where the medical officer declared him dead.

"Police were informed and an unnatural death case was filed. The body has been sent for post-mortem,” said Amit Verma, additional SP, Mathabhanga.

Jalal's family members accused BSF of foul play.

"We suspect the BSF stripped him and beat him up. That is why when he was brought to the hospital, he was in BSF uniform. We want the police to find out the truth,” said Nur Islam Mian, a panchayat member.

Jalal was last seen in a shirt and a lungi. “How can a villager get a BSF uniform? He died of the BSF’s atrocities,” said relative Sadiq Hossain.

District Trinamul chief Avijit De Bhowmik said they would send a detailed report to party general secretary Abhishek Banerjee’s office and blamed Cooch Behar BJP MP and junior Union minister Nisith Pramanik for "silence".

Later, Jalal’s kin filed a complaint against the BSF.